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Availability: Obsolete
OBSOLETE M4 Serial Adapter Card

Production Specification

M4 Serial Adapter Card

This part is obsolete and no longer available.

If you need to replace this part, you may want to migrate to the SNAP PAC System. For migration information, the FactoryFloor to PAC Project Migration Technical Note. Then contact our Opto 22  Pre-Sales engineers with details about your specific application so they can help recommend parts.



Communication speed

300-115.2 KBd

Maximum connection distance

Up to 3,000 ft. (more with repeater)

Port configuration:
COM2, RS-232 or RS-485/422
COM3, RS-232 or RS-485/422


RS-232: TX, RX, RTS, CTS, DTR (+V), +5V, GND
RS-485: 2-wire, half-duplex; RS-422: 4-wire, half- or full-duplex

Cable specifications for RS-232 or

#24 gauge, 7x32 stranded,
100-ohm nominal impedance, 12.5 p/F/ft.


Plug, 7-position screw terminal
Phoenix Contact, P/N: MC1 5/7-ST-3, 81

Power requirement (at 5 VDC)

220 mA

Typical operating temperature

-20 °C to 70 °C

Storage temperature

-40 °C to 85 °C


M4 Controllers Serial Adapter Card Data Sheet

*** This product is obsolete and no longer available. *** 
The M4SSER expands the number of serial ports on the M4 Modular Controllers from two to four.

CE Declaration: Component

This document is the Manufacturer's Declaration for the listed products as mentioned in the attachment - to which this confirmation refers - that they are in accordance with the mentioned European, international and/or national standards and regulations.

No downloads are available for this product.
No videos or demos are available for this product.